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From Furkan KAMACI <furkankam...@gmail.com>
Subject Re: Some Questions About Using Solr as Cloud
Date Tue, 16 Apr 2013 11:37:19 GMT
Hi Erick;

Thanks for the explanation. You said:

"You cannot transfer just the indexed form of a document from one
core to another, you have to re-index the doc." why do you think like that?

2013/4/16 Erick Erickson <erickerickson@gmail.com>

> Yes. Every node is really self-contained. When you send a doc to a
> cluster where each shard has a replica, the raw doc is sent to
> each node of that shard and indexed independently.
>
> About old docs, it's the same as Solr 3.6. Data associated with
> docs stays around in the index until it's merged away.
>
> You cannot transfer just the indexed form of a document from one
> core to another, you have to re-index the doc.
>
> Best
> Erick
>
> On Mon, Apr 15, 2013 at 7:46 AM, Furkan KAMACI <furkankamaci@gmail.com>
> wrote:
> > Hi Jack;
> >
> > I see that SolrCloud makes everything automated. When I use SolrCloud is
> it
> > true that: there may be more than one computer responsible for indexing
> at
> > any time?
> >
> > 2013/4/15 Jack Krupansky <jack@basetechnology.com>
> >
> >> There are no masters or slaves in SolrCloud - it's fully distributed.
> Some
> >> cluster nodes will be "leaders" (of the shard on that node) at a given
> >> point in time, but different nodes may be leaders at different points in
> >> time as they become "elected".
> >>
> >> In a distributed cluster you would never want to store documents only on
> >> one node. Sure, you can do that by setting the replication factor to 1,
> but
> >> that defeats half the purpose for SolrCloud.
> >>
> >> Index transfer is automatic - SolrCloud supports fully distributed
> update.
> >>
> >> You might be getting confused with the old "Master-Slave-Replication"
> >> model that Solr had (and still has) which is distinct from SolrCloud.
> >>
> >> -- Jack Krupansky
> >>
> >> -----Original Message----- From: Furkan KAMACI
> >> Sent: Sunday, April 14, 2013 7:45 PM
> >> To: solr-user@lucene.apache.org
> >> Subject: Some Questions About Using Solr as Cloud
> >>
> >>
> >> I read wiki and reading SolrGuide of Lucidworks. However I want to clear
> >> something in my mind. Here are my questions:
> >>
> >> 1) Does SolrCloud lets a multi master design (is there any document
> that I
> >> can read about it)?
> >> 2) Let's assume that I use multiple cores i.e. core A and core B. Let's
> >> assume that there is a document just indexed at core B. If I send a
> search
> >> request to core A can I get result?
> >> 3) When I use multi master design (if exists) can I transfer one
> master's
> >> index data into another (with its slaves or not)?
> >> 4) When I use multi core design can I transfer one index data into
> another
> >> core or anywhere else?
> >>
> >> By the way thanks for the quick responses and kindness at mail list.
> >>
>

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